Simple Machines By Nathan. Contents Pulley Wedge Lever Inclined Plane Wheel and Axle Gears Screw.
Quick Quiz Warm-Up 1. A fork is an example of a: lever wedge wheel and axle 2. A bicycle is an...
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Transcript of Quick Quiz Warm-Up 1. A fork is an example of a: lever wedge wheel and axle 2. A bicycle is an...
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Quick Quiz Warm-Up1. A fork is an example of a: lever wedge wheel and axle 2. A bicycle is an example of a: wheel and axle wedge lever 3. A bathtub is an example of a/an: pulley screw inclined plane 4. A swivel chair is an example of a: lever screw wedge 5. A teeter totter on the playground is a: lever inclined plane pulley 6. You would use a pulley to: cut food hold pieces of wood together
help open and close venetian blinds 7. A hammer is an example of a lever screw wedge
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Simple Machines Simple Machines ExamplesExamples
Darren Nigh
Science 7
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Pulley
• A pulley is a simple machine that uses grooved wheels and a rope to raise, lower or move a load.
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Examples of Pulleys
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LeverLever
• A lever is a stiff bar that rests on a support called a fulcrum which lifts or moves loads.
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Examples of LeversExamples of Levers
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WedgeWedge• A wedge is an object with
at least one slanting side ending in a sharp edge, which cuts material apart.
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Examples of Wedges Examples of Wedges
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Wheel and AxleWheel and Axle
• A wheel with a rod, called an axle, through its center lifts or moves loads.
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Examples of Wheel and Axle
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Inclined PlaneInclined Plane
• An inclined plane is a slanting surface connecting a lower level to a higher level.
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Examples of Inclined Planes Examples of Inclined Planes
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Examples of Inclined PlanesExamples of Inclined Planes
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ScrewScrew
• A screw is an inclined plane wrapped around a pole which holds things together or lifts materials.
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The Screw• This simple demonstration shows how a screw is
actually an inclined plane. • Materials
Pencil Paper Colored felt tip marker Scissors Procedure1. Cut a right triangle from the paper. The dimensions should be about 5 inches, by 9 inches, by 10.3 inches.2. Use the felt tip marker to color the longest edge (10.3 inches) of the triangle.3. Position the shortest side (5 inches) of the triangle along the side of the pencil and then evenly wrap the paper around the pencil by rolling the pencil.
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Illustration of Activity
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Examples of ScrewsExamples of Screws
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Name Name
the the
66
Simple Simple
MachinesMachines
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Pulley
Lever
Wedge
Wheel and Axle
Inclined Plane
Screw
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Simple MachinesSimple Machines
ExamplesExamples
The EndThe End